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Image shows snow covered peak with debris flows clearly delineated. Flows appear to be on top of the snow cover.

Lassen Peak eruption showing large rock in left foreground. Rock is annotated "Hot Rock". View toward the peak shows a debris flow from the crater. Sections of the image are overexposed.

Remarkable image of the eruption, illuminated from the right, showing the ash cloud. Inscription on image refers to the appearance of the ash cloud as "Vulcan's Face" which can be seen facing the left.

Volcanic eruption of Lassen Peak, taken near midday, illuminated from behind, estimated 4-5 miles distant. Touring cars occupy the foreground. Strong shadows.

Well lit image of a lava tube cave.

Keeler Needles. Mts. Muir and Langley in distance. Looking south-east from summit of Whitney.

Six men in foreground looking up Bear Gulch. Camera is pointed up-sun, causing background to be hazy. Additional figures seated in center.

Man standing at the base of a rock face, center. Larger rock walls in the right background. Strong shadows.

Portrait view taken from some elevation of a large rock buttress in the center background. Downhill is a buckboard without horses parked next to a road. Two women occupy the right foreground.

Portrait view of several vertical rock pinnacles in the center background. Automobiles and tents are concealed in trees in the foreground.